Cowans Gap Lake Weather Forecast

    • 66
    • 84

    Slight Chance Thunderstorms

    • 65
    • 84

    Chance Thunderstorms

    • 65
    • 87

    Chance Thunderstorms

    • 62
    • 81

    Slight Chance Rain Showers

    • 61
    • 76

    Chance Rain Showers

    • 60
    • 76

    Chance Thunderstorms

Today 15 Aug Fulton

Mostly sunny. Isolated Showers and Thunderstorms this afternoon. Very warm with Highs in the upper 80s. Northeast Winds around 5 Mph, becoming east this afternoon. Chance of rain 20 percent.

Tonight 15 Aug Fulton

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Patchy fog after midnight. Humid with Lows in the upper 60s. East Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Cowans Gap Lake Temperature Statistics

August Temperature

Hagerstown, Washington County Regional Airport (22.4 miles)

  • Lowest 3 August, 2025

    56.6 °F

  • Average August

    73.8 °F

  • Highest 12 August, 2025

    91 °F

Climate (2020–Present)

Hagerstown, Washington County Regional Airport (22.4 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    65.9 °F
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